I just saw Dragon Age for the XBox 360 at Wal-Mart for $39.95 today. I'm in Morris County, New Jersey. I didn't check the PC version cost, but the PS3 version was still $59.95.
They also had Borderlands for the XBox 360 for $29.95. Several other games had "price drop" tags, but those are the only two I remember the prices of.
Hmm, walmart.com reports that borderlands and dragon age are not sold in stores so I guess they were clearancing them out. Now, do I want to go on a wild goose chase for games I already own (so I can return to best buy/target)?